Evidence of lightning NOx and convective transport of pollutants in satellite observations over North America
- 19 January 2005
- journal article
- Published by American Geophysical Union (AGU) in Geophysical Research Letters
- Vol. 32 (2)
- https://doi.org/10.1029/2004gl021436
Abstract
Column observations of NO2 by GOME and CO by MOPITT over North America and surrounding oceans for April 2000 are analyzed using a regional chemical transport model. Transient enhancements in these measurements due to lightning NOx production or convective transport are examined. Evidence is found for lightning enhancements of NO2 over the continent and western North Atlantic and for convective transport enhancements of CO over the ocean. The two independent satellite measurements show consistent enhancements related to convective events. Model results suggest that the enhancements are particularly large in the lower troposphere due to convective downdrafts of lightning NOx and shallow convection of CO, implying that low‐altitude aircraft in situ observations are potentially critical for evaluating the model simulations and validating satellite observations of these transient features.This publication has 22 references indexed in Scilit:
- Global simulation of tropospheric ozone using the University of Maryland Chemical Transport Model (UMD‐CTM): 2. Regional transport and chemistry over the central United States using a stretched gridJournal of Geophysical Research: Atmospheres, 2004
- Validation of Measurements of Pollution in the Troposphere (MOPITT) CO retrievals with aircraft in situ profilesJournal of Geophysical Research: Atmospheres, 2004
- Widespread persistent near‐surface ozone depletion at northern high latitudes in springGeophysical Research Letters, 2003
- Operational carbon monoxide retrieval algorithm and selected results for the MOPITT instrumentJournal of Geophysical Research: Atmospheres, 2003
- Identification of CO plumes from MOPITT data: Application to the August 2000 Idaho‐Montana forest firesGeophysical Research Letters, 2003
- Evaluation of lightning flash rate parameterizations for use in a global chemical transport modelJournal of Geophysical Research: Atmospheres, 2002
- An improved retrieval of tropospheric nitrogen dioxide from GOMEJournal of Geophysical Research: Atmospheres, 2002
- Global modeling of tropospheric chemistry with assimilated meteorology: Model description and evaluationJournal of Geophysical Research: Atmospheres, 2001
- Minor flux adjustment near mixing ratio extremes for simplified yet highly accurate monotonic calculation of tracer advectionJournal of Geophysical Research: Atmospheres, 2000
- Detection of biomass burning combustion products in Southeast Asia from backscatter data taken by the GOME SpectrometerGeophysical Research Letters, 1998